I don’t know where this “needing an additional fence” is coming from but the birdcage itself meets the fencing requirement.I have doubts too.
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Factoring in that some kind of childproof fencing needs to be installed around the pool. And it will end between the right edge kitchen window framing and the pool toy box. That leaves 13 feet of space under the kitchen window (guesstimating per @VloggerCritic’s schematics)
Is that enough room for chairs at the counter?
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That is very on brandSo they extended the pool deck because it was too cramped before so they are going to fill in all the new space with the kitchen to make it too cramped.